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|1. (WO2018014691) METHOD AND DEVICE FOR ACQUIRING MEDIA DATA|
|Applicants:||HUAWEI TECHNOLOGIES CO., LTD.
|Title:||METHOD AND DEVICE FOR ACQUIRING MEDIA DATA|
A method and device for acquiring media data, relating to the field of media transmission. The method comprises: acquiring a media presentation description file, wherein the media presentation description file comprises index fragment information; obtaining an index fragment according to the index fragment information; parsing the index fragment to obtain reference frame information corresponding to a data fragment; parsing the index fragment to obtain data fragment information; obtaining the reference frame according to the reference frame information corresponding to the data fragment; and obtaining the data fragment according to the data fragment information. A method based on a DASH technique is proposed with regard to the properties of a code stream encoded with a knowledge base technique. The method supports the application of the knowledge base encoding technique with minor syntax changes under the framework of a DASH standard protocol, so that a client can flexibly switch and play a code stream without wasting any bandwidth.